Tech First Kit-Texas Instruments-PGA870EVM-Programmable Gain Amplifier-Dev Kits

The PGA870 PGA870 is a wideband PGA (available in a QFN-28 package) that has been optimized to provide high bandwidth, low distortion, and low noise, making it ideally suited as a 14-bit analog-to-digital converter (ADC) driver for wireless base station signal chain applications. The wide gain range of –11.5 dB to +20 dB can be adjusted in 0.5-dB gain steps through a 6-bit control word applied to the parallel interface. The PGA870 PGA870 evaluation fixture supports the feature and performance evaluations of the PGA870 PGA870. The evaluation fixture has onboard switches for device power-up and power-down, gain setting, and gain latch modes. The PGA870EVM. PGA870EVM. has SMA connectors for input and output signals and a DB25 connector to allow gain control via an external control source. Also included in the evaluation kit is an additional interface board that allows the user to control the PGA870 PGA870 gain from an external USB interface, as well as graphical user interface (GUI) software that allows the user to remotely set the device gain. The PGA870 PGA870 evaluation fixture requires a +5-V power supply. Throughout this document, the acronym EVM and the phrases evaluation module and evaluation fixture are synonymous with the PGA870EVM. PGA870EVM..

The PGA870EVM. PGA870EVM. kit contains:

• PGA870EVM. PGA870EVM. printed circuit board (PCB)
• PGA870 PGA870 USB Interface board
• USB interface cable
• CD with this document, the GUI software installer, and USB drivers

• Onboard switches for device power-up and power-down, gain setting, and gain latch modes
• SMA connectors for input and output signals and a DB25 connector to allow gain control via an external control source
• An interface board that allows the user to control the PGA870 PGA870 gain from an external USB interface via (included) graphical user interface(GUI) software